Extensions of time to file
If you can’t file your Oregon return by the due date, you may be able to get a six-month extension of time to file. For 2018 returns, this means you have until October 15, 2019, to file.
An extension of time to file your return doesn’t mean you have more time to pay your taxes.
You must pay any tax you expect to owe by April 15, 2019. If you don’t, you will owe interest on the unpaid balance from April 16, 2019, until the date it’s paid, and will be subject to a minimum penalty of 5 percent of the unpaid tax. To avoid penalty and interest charges, include enough payment with your extension to cover your tax liability. Once you file your return, if you have overpaid, we'll refund the overpayment. See “Interest and penalties” for more information.
Were you stationed in a designated combat zone? If you were in the military and stationed in a designated combat zone, you may qualify for an automatic extension of time to file your return. See “Military personnel filing information.”
Was your home or business located in a presidentially-declared disaster area? Did you receive additional time to file your federal tax return and pay your federal tax? If so, you may qualify for additional time to file your Oregon return and pay your Oregon tax. Check the “Federal disaster relief” box on your return.
Extension for filing returns
Oregon accepts your federal extension. If you didn’t file for a federal extension, but you need more time to file your Oregon return and you owe tax, submit a payment by check or money order using Form OR‑40-V and check the “Extension payment” box on the form. You don't need to submit Form OR-40-V if you aren't paying by check or money order. However, when you make your payment, indicate that you are making an extension payment. Your extension payment must be received by April 15, 2019, to avoid penalties and interest on the amount paid.
Whether you owe tax or are expecting a refund, mark the “Extension filed” box on your Oregon return and file your return by October 15, 2019.